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Commit | Line | Data |
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b2b2dafc DSH |
1 | /* S/MIME signing example: 2 signers. OpenSSL 0.9.9 only */ |
2 | #include <openssl/pem.h> | |
3 | #include <openssl/pkcs7.h> | |
4 | #include <openssl/err.h> | |
5 | ||
6 | int main(int argc, char **argv) | |
0f113f3e MC |
7 | { |
8 | BIO *in = NULL, *out = NULL, *tbio = NULL; | |
9 | X509 *scert = NULL, *scert2 = NULL; | |
10 | EVP_PKEY *skey = NULL, *skey2 = NULL; | |
11 | PKCS7 *p7 = NULL; | |
12 | int ret = 1; | |
b2b2dafc | 13 | |
0f113f3e MC |
14 | OpenSSL_add_all_algorithms(); |
15 | ERR_load_crypto_strings(); | |
b2b2dafc | 16 | |
0f113f3e | 17 | tbio = BIO_new_file("signer.pem", "r"); |
b2b2dafc | 18 | |
0f113f3e MC |
19 | if (!tbio) |
20 | goto err; | |
b2b2dafc | 21 | |
0f113f3e | 22 | scert = PEM_read_bio_X509(tbio, NULL, 0, NULL); |
b2b2dafc | 23 | |
0f113f3e | 24 | BIO_reset(tbio); |
b2b2dafc | 25 | |
0f113f3e | 26 | skey = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL); |
b2b2dafc | 27 | |
0f113f3e | 28 | BIO_free(tbio); |
b2b2dafc | 29 | |
0f113f3e | 30 | tbio = BIO_new_file("signer2.pem", "r"); |
b2b2dafc | 31 | |
0f113f3e MC |
32 | if (!tbio) |
33 | goto err; | |
b2b2dafc | 34 | |
0f113f3e | 35 | scert2 = PEM_read_bio_X509(tbio, NULL, 0, NULL); |
b2b2dafc | 36 | |
0f113f3e | 37 | BIO_reset(tbio); |
b2b2dafc | 38 | |
0f113f3e | 39 | skey2 = PEM_read_bio_PrivateKey(tbio, NULL, 0, NULL); |
b2b2dafc | 40 | |
0f113f3e MC |
41 | if (!scert2 || !skey2) |
42 | goto err; | |
b2b2dafc | 43 | |
0f113f3e | 44 | in = BIO_new_file("sign.txt", "r"); |
b2b2dafc | 45 | |
0f113f3e MC |
46 | if (!in) |
47 | goto err; | |
b2b2dafc | 48 | |
0f113f3e | 49 | p7 = PKCS7_sign(NULL, NULL, NULL, in, PKCS7_STREAM | PKCS7_PARTIAL); |
b2b2dafc | 50 | |
0f113f3e MC |
51 | if (!p7) |
52 | goto err; | |
b2b2dafc | 53 | |
0f113f3e | 54 | /* Add each signer in turn */ |
b2b2dafc | 55 | |
0f113f3e MC |
56 | if (!PKCS7_sign_add_signer(p7, scert, skey, NULL, 0)) |
57 | goto err; | |
b2b2dafc | 58 | |
0f113f3e MC |
59 | if (!PKCS7_sign_add_signer(p7, scert2, skey2, NULL, 0)) |
60 | goto err; | |
b2b2dafc | 61 | |
0f113f3e MC |
62 | out = BIO_new_file("smout.txt", "w"); |
63 | if (!out) | |
64 | goto err; | |
b2b2dafc | 65 | |
0f113f3e | 66 | /* NB: content included and finalized by SMIME_write_PKCS7 */ |
b2b2dafc | 67 | |
0f113f3e MC |
68 | if (!SMIME_write_PKCS7(out, p7, in, PKCS7_STREAM)) |
69 | goto err; | |
b2b2dafc | 70 | |
0f113f3e | 71 | ret = 0; |
b2b2dafc | 72 | |
0f113f3e | 73 | err: |
0f113f3e MC |
74 | if (ret) { |
75 | fprintf(stderr, "Error Signing Data\n"); | |
76 | ERR_print_errors_fp(stderr); | |
77 | } | |
e0e920b1 | 78 | PKCS7_free(p7); |
222561fe | 79 | X509_free(scert); |
c5ba2d99 | 80 | EVP_PKEY_free(skey); |
222561fe | 81 | X509_free(scert2); |
c5ba2d99 | 82 | EVP_PKEY_free(skey2); |
ca3a82c3 RS |
83 | BIO_free(in); |
84 | BIO_free(out); | |
85 | BIO_free(tbio); | |
0f113f3e | 86 | return ret; |
0f113f3e | 87 | } |